High oxygen flow rate: 2–9 LPM (Adjustable) Oxygen concentration: 30%–90% (Adjustable) German pure copper oil-free compressor PSA technology with a molecular sieve Infrared remote control (20 Meter) 4.5″ high-quality HD LED touch screen 24-hour continuous oxygen supply Simultaneous double oxygen inhalation Sleep & power-saving modes Low noise operation – less than 45dB Portable with a handle for easy handling 1-Year Manufacturer Warranty
